Cartridge-fuse.



L. I). BLAGKMAN.

. CARTRIDGE FUSE. APPLIUATION FILED MAR. '29, 913.

Eatented Mar. 17, 191% kw Mm v w XIM/EMTOR Zm L/ QJ L 0/! variation in the showing the fuse with 'structed that when one fuse is v mechanical and easily adjusted.

alinement will not effect electrical contact UNITED sratrns rnrnn'r orrrou.

men n. snaoiman', or BATTLE cnnnx, Mrcmoem oanrnrneE-rusn.

l Specification oi. Letters Patent. v Patented :Man 17 1914 Application filed March 29, 1913. Serial No. 75?,681.

yiews inwhich A represents a non-conductmg cylindrical container or cartridge shell for the reception of asbestos, wool or other non-conducting filament, the same being exteriorly threaded at its ends for receiving the interiorly-threaded ferrule and knife-bladed hcadsl and 2, respectively.

'.l-he'1i1anner of securing the round fuse wires 8, shown in the views'is identically To all whom it mag cahcem v e it own that I, LEON D. BLAGKMAN, a. citizen of the United States, residing at I Battle,Creek, in the county of Calhoun and State of Michi an, have invented certain new and useful mprovements in Cartridge- Fuses, of which the following is a specification.

The present invention more particularly relates to refillable cartridge fuses so c0nburned out the parts again alike; the only diiference in the make-up of the fuses is a provision employed in the 'lrnife-blade style shown in Fig. the blades and not detract from the electrical contact of the parts, which will be hereinanother may lie-installed and in rea 'ness for use.

The main object of the invention is to construct a fuse of its class wherein the electriafter more fully explained. cal Contact of the assembled parts will have To either end of the shell A, a fusehold a large area of surface and in which the 111g head 4 is fitted. These heads at points parts will be very firmly held i about their edges have a series of stamped in position and capable of being readily] lugs 5, which when fitted extend within the shell in close enlgagement therewith to prevent the heads from lateral displacement. The heads furtheir are provided with central fuse-recciving apertures 6 and oppositely-disposed perforations 7, the latter of which receive the depending lugs 8 of the caps 9.

In fitting a fuse wire 3 to the end of a shell it is inserted through the aperture 6 of a heads and extends somewhat beyond it also contemplates making the various the head; thence a cap -9 with a radiallyelements of simple construction, economical formed open-ended slot 10 is-fit-ted to the to manufacture and capable of being easily head with the slot striding the fuse and the assembled. lugs 8 inserted within the perforations, as

The invention with its novel features will shown in F lgs. 7 and 8... The parts having be more fully described in connection with been thus far assembled, the free end of the the accompanying drawings and will he fuse is thence bent to one side through the more particularly ascertained in and by the slot 10 in the cap 9 and passed between the appended claims. cap and head 4 and wound about the lugs In the drawings z-Figure 1 is a vertical 8, as shown in Fig. 3. longitudinal elevation partly in section, VVhei-eaplain ferrule-end fuse is employed,

' plain ferrule head. the ferrule l is placed over the assembled Fig. 2 is a like view showing the fuse with parts and screwed onto the threaded end of a knife-blade head. 'Figg is a plan view the shell until the parts are firmly pressed of the fuse-holder and its attaching cap together between the head of the ferrule and with fuse in operative position. Fig. 4: is the end of the shell asin Fig. l. a perspective view of thefuse-holding head. Where knife-blade ferrule, as 2, is em- Fig. 5 is a perspective View of the fuse ployed, at least one end of the head. Fig. 6 is a view of the spring disk vided with a spring disk 11. This disk is employed to compensate for the adjustment fitted to the fuse between the cap9 and the in the attachment of a knife-blade head. knife-blade ferrule 2, as shown in Fig. Fig. 7 is a detail, showing the fuse passed in effect good resiliency the disk may be through its holder and cap preparatory to radially slltted and provided with ash htly being wound between the parts; Fig. 8 is raised center portion, as shown. The 0 ject a transverse view of the some. I

It also contemplates means whereby the ferrule heads of a fuse may be changed from a round to a knifehlade style, as may be expedient.

It. also contemplates means whereby any adjustment to render the heads of a knife-blade fuse in correlative of the assembled parts.

of the disk is to afford a resilient bushing Likemarks of reference refer to corre" between the cap and ferrule so'that in screwsponding parts throughout the diflerent ing the ferrule on the shell perfect electrical se is pro- 0011mm mhveen the ferrule an L 1 QfiQCtQfL and. still make PYOVISKOD. L0 coinclklunmfly mine the blades 016 the respectim 'ierrulcs. From. the foregoing descri L t f apparent that fuse 1. my be i 2, SC1('\ 2 at ciiher and O'f a shell am that Whill a fuse- \viil'l c0 i j Wire has been burneci out a new one may be 5 f h' ai m -1 56 easilyvefitted into position and the shell said shell. and provided 1th 6 A; m refilled' without especial tools for the purag am'tures for the 1' wepti 3 pose and without undl'le delay in so (1011155. harmg ottpss'ni rams, a

" men'lbmrs 1 4;

Hzn'ing, themiore, set forth the objects and. m lmntages of my invention What 3' claim as nev and desire tn secure by w Patentis:

an insulating cvhndrical snm threaded its ea c s and screw-1&1 rule members received by e 20 members 011 the ends 01 sm 1 having centrally alined apertures {for 11+ 1 rations can members hmmg A ting through 551,151. pct'iojcmivnb on V '1 :Euso when wmmd'mom said SCL'BW if cap 11121113361 '2'. in 2 cw 9 the so an. ix'lsulmti cyllndricn'i led us ends: :mai promded Swat-ash;

caption of posed, 1'? )l c211;- lugs fitted 4; smfl peyiom 

